When you're blasting calories while baking in the sun, it's crucial to guzzle the right stuff. Beach volleyball medalists Kerri Walsh, Elaine Youngs and Holly McPeak shared their "power-beverage" picks (beyond water and Gatorade) with : Pedialyte, an electrolyte drink with less sugar than Gatorade Cytomax sports energy drink Electrolyte tablets that dissolve in water Fresh fruit—it's got a high water content! (Source: WebMD.com)

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